bash-doc 4.4.18-1ubuntu1 (amd64 binary) in ubuntu bionic

 Bash is an sh-compatible command language interpreter that executes
 commands read from the standard input or from a file. Bash also
 incorporates useful features from the Korn and C shells (ksh and csh).
 .
 This package contains the distributable documentation, all the
 examples and the main changelog.